Great Silver Mine, Basin Mine group, Wieland group (Wieland group claims), Harshaw, Harshaw Mining District, Patagonia Mountains, Santa Cruz County, Arizona, USAi
| Regional Level Types | |
|---|---|
| Great Silver Mine | Mine |
| Basin Mine group | - not defined - |
| Wieland group (Wieland group claims) | - not defined - |
| Harshaw | - not defined - |
| Harshaw Mining District | Mining District |
| Patagonia Mountains | Mountain Range |
| Santa Cruz County | County |
| Arizona | State |
| USA | Country |
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Latitude & Longitude (WGS84):
31° 28' 49'' North , 110° 42' 39'' West
Latitude & Longitude (decimal):
Type:
Köppen climate type:
Nearest Settlements:
| Place | Population | Distance |
|---|---|---|
| Patagonia | 890 (2017) | 7.9km |
| Kino Springs | 136 (2011) | 16.1km |
| Beyerville | 177 (2011) | 18.8km |
| Sonoita | 818 (2015) | 22.7km |
| Francisco Miguel Cárdenas Valdez (Mascareñas) | 541 (2014) | 24.2km |
Nearest Clubs:
Local clubs are the best way to get access to collecting localities
Local clubs are the best way to get access to collecting localities
| Club | Location | Distance |
|---|---|---|
| Huachuca Mineral and Gem Club | Sierra Vista, Arizona | 39km |
‡Ref.: Schrader, F.C. & J.M. Hill (1915), Mineral deposits of the Santa Rita and Patagonia Mountains, Arizona, USGS Bull. 582: 275-276.
Keith, Stanton B. (1975), Arizona Bureau of Mines Bull. 191, Index of Mining Properties in Santa Cruz County Arizona: 56 (Table 4).
U.S. Bureau of Mines Coronado National Forest Study.
Arizona Bureau of Mines file data.
MRDS database Dep. ID file #10138018, MAS ID #0040230444.
A former underground Ag-Pb-Cu-Au-Zn mine group located in the center & east-center (NE¼) of sec. 33, T.22S., R.16E, ¼ mile E of the Basin Mine, on National Forest land. Owned by the Mumme Mining Co.
Mineralization is deeply oxidized, siliceous, lensing, quartz shear veins containing argentiferous galena and other sulfides, cutting crushed and altered Cretaceous andesite volcanics with interbedded silicated limestone and shale with rhyolite intrusives. The Great Silver vein is underlain by andesite containing 2 feet of soft decomposed vein material.
A strong siliceous vein or ore bed dips 30ºN. in andesite. It consists of an altered mineralized sheet of intrusive rhyolite from 2 to 3 feet thick, largely replaced by heavily iron-stained quartz and gypsum, which are the principal gangue minerals, especially next to the hanging wall. The ore mineral is dark, highly argentiferous galena.
Workings include a 50 foot drift tunnel. The deposit is stoped from the tunnel 60 feet upward to the surface.
Workings include shafts, adits, tunnels, and open cuts. The tunnel is 50 feet long and is stoped 60 feet to surface. These mines were worked in the 1880's and early 1900's. They produced some 100 tons of ore averaging about 15 oz. Ag/T, 5.5% Pb, and 4.5% Cu.
Select Mineral List Type
Standard Detailed Gallery Strunz Chemical ElementsCommodity List
This is a list of exploitable or exploited mineral commodities recorded at this locality.Mineral List
2 valid minerals.
Detailed Mineral List:
| ⓘ Galena Formula: PbS |
| ⓘ Galena var. Silver-bearing Galena Formula: PbS with Ag |
| ⓘ Gypsum Formula: CaSO4 · 2H2O |
Gallery:
List of minerals arranged by Strunz 10th Edition classification
| Group 2 - Sulphides and Sulfosalts | |||
|---|---|---|---|
| ⓘ | Galena | 2.CD.10 | PbS |
| ⓘ | var. Silver-bearing Galena | 2.CD.10 | PbS with Ag |
| Group 7 - Sulphates, Chromates, Molybdates and Tungstates | |||
| ⓘ | Gypsum | 7.CD.40 | CaSO4 · 2H2O |
List of minerals for each chemical element
| H | Hydrogen | |
|---|---|---|
| H | ⓘ Gypsum | CaSO4 · 2H2O |
| O | Oxygen | |
| O | ⓘ Gypsum | CaSO4 · 2H2O |
| S | Sulfur | |
| S | ⓘ Galena | PbS |
| S | ⓘ Gypsum | CaSO4 · 2H2O |
| S | ⓘ Galena var. Silver-bearing Galena | PbS with Ag |
| Ca | Calcium | |
| Ca | ⓘ Gypsum | CaSO4 · 2H2O |
| Ag | Silver | |
| Ag | ⓘ Galena var. Silver-bearing Galena | PbS with Ag |
| Pb | Lead | |
| Pb | ⓘ Galena | PbS |
| Pb | ⓘ Galena var. Silver-bearing Galena | PbS with Ag |
Other Databases
| Link to USGS MRDS: | 10138018 |
|---|
Other Regions, Features and Areas containing this locality
Mexico
- Sierra Madre OccidentalMountain Range
North AmericaContinent
- Sonoran DesertDesert
North America PlateTectonic Plate
- Basin and Range BasinsBasin
- Mazatzal DomainDomain
- Southern Basin and RangeWide Rift
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